ASTROSAT CZTI

Data Quality Report

Orbit 10216

Creation date: 2024-06-27T15:56:28.868548
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A03_099T01_9000001472_10216cztM0_level2.evt modeM0/AS1A03_099T01_9000001472_10216cztM0_level2_quad_clean.evt
Size (bytes)483,477,12070,830,720
Size461.1 MB 67.5 MB
Events in quadrant A4,209,505423,104
Events in quadrant B3,312,295435,229
Events in quadrant C3,064,467432,376
Events in quadrant D3,625,796411,733

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0167467
B01374510
C01320813
D01456410

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63412393.769122%
B6339580.914971%
C6338270.426002%
D6340881.388013%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 7553 6343 156 156 2.07% 2.46%
B 7553 6344 10 10 0.13% 0.16%
C 7553 6344 0 0 0.00% 0.00%
D 7553 6343 49 49 0.65% 0.77%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 15 223 438037 2726.82 793 779 160.4
A 8 15 411727 2562.75 793 779 160.4
A 15 239 184428 1145.27 793 779 160.4
B 4 239 91543 601.09 806 790 151.0
B 11 51 55814 364.44 806 790 151.0
B 0 214 18712 118.7 806 790 151.0
C 4 175 12916 67.66 780 786 179.3
C 13 61 5948 28.79 780 786 179.3
C 14 67 4159 18.81 780 786 179.3
D 8 195 264393 1345.83 772 757 195.9
D 2 16 79797 403.49 772 757 195.9
D 2 14 78361 396.16 772 757 195.9

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter